6533b829fe1ef96bd128a468
RESEARCH PRODUCT
Effect of metal dilution on the light-induced spin transition in [FexZn1-x(phen)2(NCS)2] (phen = 1,10-phenanthroline)
Philipp GütlichCédric DesplanchesPhilippe GuionneauJean-françois LétardAlain WattiauxChérif Baldésubject
Spin statesPhenanthrolineAnalytical chemistrySpin transition010402 general chemistry01 natural sciencesLIESSTInorganic ChemistryMagnetic susceptibilitychemistry.chemical_compoundChemical compoundsDiffuse reflectivity measurements010405 organic chemistryMetalRelaxation (NMR)[CHIM.MATE]Chemical Sciences/Material chemistryPhotomagnetismMagnetic susceptibility3. Good health0104 chemical scienceschemistryExcited statePhysical chemistryCondensed Matter::Strongly Correlated ElectronsLIESSTPhotomagnetismdescription
International audience; The thermal and light-induced spin transitions in [FexZn1-x(phen)2(NCS)2] (phen = 1,10-phenantholine) have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These complexes display a thermal spin transition and undergo the light-induced excited spin state trapping (LIESST) effect at low temperatures. For each compound, the thermal spin transition temperature, T1/2, and the relaxation temperature of the photo-induced high-spin state, T(LIESST), have been systematically determined. It appears that T1/2 decreases with the metal dilution while T(LIESST) remains unchanged. This behaviour is discussed on the basis of the kinetic study governing the photo-induced back conversion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-08-09 |